Stormy weather returns to Eastern Canada

Prepare yourselves, Eastern Canada. You’re already feeling a big cooldown, but there’s snow and rain on the way too, starting Sunday evening. That’s when an approaching low-pressure system is set to start flowing into southern Ontario and beyond.

Light snow will affect southwestern Ontario, with accumulations of less than 5 cm. More than 5 cm is expected in eastern Ontario, including the Ottawa area, while the north shore of Lake Ontario and the St. Lawrence River has the possibility of seeing mixing or light rain in Monday morning, from the Greater Toronto Area to Cornwall, making for a messy commute.

Snowfall amounts will be higher in the north, with 5-10 cm falling between Sunday night and Monday, thanks to a secondary low affecting the area. The potentially messy system will reach the capital region and southern Quebec by the pre-dawn hours Monday, and by the time it reaches the Maritimes on Monday morning, light snow will be possible.

Through Monday evening, the snow will change to rain overnight in Nova Scotia, staying as snow in New Brunswick. By the next morning, the system will whip the winds in the Gulf of St. Lawrence up to 100 km/h.

In Newfoundland, the snow starts Monday overnight, switching to light rain along the south coast and Avalon Peninsula early afternoon and leaving the island Tuesday evening. That’s also when the winds will begin to increase into the overnight, gusting up to 100 km/h.